package w1;

import java.util.Scanner;
// #include <stdio.h>

public class Lt1 {
	public static void main(String[] args) {
		Scanner input = new Scanner(System.in);
		// int b = 10;
		System.out.println("input double: ");
		// printf("input double:\n");
		double a = input.nextDouble();
		// scanf("%f", &a);
		System.out.println("a = " + a);
	}

}
